/// <summary>
/// アセットバンドル名でアセットをグループ化.
/// </summary>
/// <returns></returns>
private ILookup <string, string> GetAllAssetPathByAssetBundleName()
{
var title = "Build AssetBundle Info";
EditorUtility.DisplayProgressBar(title, "Find AllAssets", 0);
var allAssetGuids = AssetDatabase.FindAssets("", new string[] { UnityPathUtility.AssetsFolder });
var allAssetPaths = new List <Tuple <string, string> >();
for (var i = 0; i < allAssetGuids.Length; i++)
{
var guid = allAssetGuids[i];
EditorUtility.DisplayProgressBar(title, guid, (float)i / allAssetGuids.Length);
var assetPath = AssetDatabase.GUIDToAssetPath(guid);
var assetBundleName = UnityEditorUtility.GetAssetBundleName(assetPath);
if (string.IsNullOrEmpty(assetBundleName))
{
continue;
}
allAssetPaths.Add(Tuple.Create(assetBundleName, assetPath));
}
EditorUtility.ClearProgressBar();
return(allAssetPaths.ToLookup(x => x.Item1, x => x.Item2));
}
private static bool HasAssetBundleName(Object asset)
{
var assetPath = AssetDatabase.GetAssetPath(asset);
var assetBundleName = UnityEditorUtility.GetAssetBundleName(assetPath);
return(!string.IsNullOrEmpty(assetBundleName));
}
private static bool HasAssetBundleName(string assetPath)
{
var assetBundleName = UnityEditorUtility.GetAssetBundleName(assetPath);
return(!string.IsNullOrEmpty(assetBundleName));
}
//----- method -----
public void CollectDependencies()
{
var progressCount = 0f;
var totalCount = 0f;
referenceInfos = new List <ReferenceInfo>();
assetBundleDependentInfos = new Dictionary <string, AssetBundleDependentInfo>();
var allAssetPathByAssetBundleName = GetAllAssetPathByAssetBundleName();
//====== アセットバンドルからの参照情報を構築 ======
progressCount = 0;
totalCount = allAssetPathByAssetBundleName.Count;
foreach (var assetBundle in allAssetPathByAssetBundleName)
{
EditorUtility.DisplayProgressBar("Find Dependencies", assetBundle.Key, progressCount / totalCount);
progressCount++;
var assetPaths = new List <string>();
var dependentAssetPaths = new List <string>();
foreach (var assetPath in assetBundle)
{
var dependencies = AssetDatabase.GetDependencies(assetPath);
foreach (var path in dependencies)
{
var assetBundleName = UnityEditorUtility.GetAssetBundleName(path);
if (assetBundle.Key == assetBundleName)
{
// 既に参照済みの場合は再登録.
if (dependentAssetPaths.Contains(path))
{
dependentAssetPaths.Remove(path);
}
// 既に参照済みの場合は追加なし.
if (assetPaths.Contains(path))
{
continue;
}
assetPaths.Add(path);
}
else
{
// 既に参照済みの場合は参照扱いしない.
if (dependentAssetPaths.Contains(path))
{
continue;
}
dependentAssetPaths.Add(path);
}
}
}
var item = new AssetBundleDependentInfo(assetBundle.Key, assetPaths.ToArray(), dependentAssetPaths.ToArray());
assetBundleDependentInfos.Add(item.AssetBundleName, item);
}
//====== 参照されているアセット情報を収集 ======
progressCount = 0;
totalCount = assetBundleDependentInfos.Count;
foreach (var info in assetBundleDependentInfos)
{
EditorUtility.DisplayProgressBar("Build ReferenceInfo", info.Key, progressCount / totalCount);
progressCount++;
foreach (var assetPath in info.Value.DependentAssetPaths)
{
var referenceInfo = referenceInfos.FirstOrDefault(x => x.AssetPath == assetPath);
if (referenceInfo == null)
{
referenceInfo = new ReferenceInfo(assetPath);
referenceInfo.ReferenceAssetBundles.Add(info.Key);
referenceInfos.Add(referenceInfo);
}
else
{
referenceInfo.ReferenceAssetBundles.Add(info.Key);
}
}
}
referenceInfos = referenceInfos
.OrderBy(x => x.ReferenceAssetBundles.Count)
.Reverse()
.ToList();
EditorUtility.ClearProgressBar();
}